diff options
| author | Joachim StroĢmbergson <joachim@secworks.se> | 2018-05-22 13:06:00 +0200 |
|---|---|---|
| committer | Joachim StroĢmbergson <joachim@secworks.se> | 2018-05-22 13:06:00 +0200 |
| commit | a8ce939e8e97af15580ccc55cc24333a307a6deb (patch) | |
| tree | ec53139dc961fef23d53c1721f11371fd4d78a35 /src/rtl/aes_decipher_block.v | |
| parent | a689dccc34edcc6b955c9b522bb141e32c871add (diff) | |
Minor cleanup of states and register sizes.
Diffstat (limited to 'src/rtl/aes_decipher_block.v')
| -rw-r--r-- | src/rtl/aes_decipher_block.v | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/src/rtl/aes_decipher_block.v b/src/rtl/aes_decipher_block.v index ce34cc8..b62065c 100644 --- a/src/rtl/aes_decipher_block.v +++ b/src/rtl/aes_decipher_block.v @@ -64,16 +64,14 @@ module aes_decipher_block( localparam AES128_ROUNDS = 4'ha; localparam AES256_ROUNDS = 4'he; - localparam NO_UPDATE = 3'h0; - localparam INIT_UPDATE = 3'h1; - localparam SBOX_UPDATE = 3'h2; - localparam MAIN_UPDATE = 3'h3; - localparam FINAL_UPDATE = 3'h4; + localparam NO_UPDATE = 2'h0; + localparam INIT_UPDATE = 2'h1; + localparam MAIN_UPDATE = 2'h2; + localparam FINAL_UPDATE = 2'h3; - localparam CTRL_IDLE = 3'h0; - localparam CTRL_INIT = 3'h1; - localparam CTRL_MAIN = 3'h2; - localparam CTRL_FINAL = 3'h3; + localparam CTRL_IDLE = 2'h0; + localparam CTRL_INIT = 2'h1; + localparam CTRL_MAIN = 2'h2; //---------------------------------------------------------------- @@ -205,8 +203,8 @@ module aes_decipher_block( reg ready_new; reg ready_we; - reg [2 : 0] dec_ctrl_reg; - reg [2 : 0] dec_ctrl_new; + reg [1 : 0] dec_ctrl_reg; + reg [1 : 0] dec_ctrl_new; reg dec_ctrl_we; @@ -221,7 +219,7 @@ module aes_decipher_block( wire [31 : 0] new_sboxw1; wire [31 : 0] new_sboxw2; wire [31 : 0] new_sboxw3; - reg [2 : 0] update_type; + reg [1 : 0] update_type; //---------------------------------------------------------------- |